/Engine/Source/Editor/UnrealEd/Public/Elements/Actor/ActorElementEditorWorldInterface.h
If you want to delete an array of elements that are potentially different types, you probably want to use the higher-levelUTypedElementCommonActions::DeleteNormalizedElementsfunction instead.
virtual bool DeleteElements ( [TArrayView](API\Runtime\Core\Containers\TArrayView)< const [FTypedElementHandle](API\Runtime\TypedElementFramework\Elements\Framework\FTypedElementHandle) > InElementHandles, [UWorld](API\Runtime\Engine\Engine\UWorld) * InWorld, [UTypedElementSelectionSet](API\Runtime\TypedElementRuntime\Elements\Framework\UTypedElementSelectionSet) * InSelectionSet, const [FTypedElementDeletionOptions](API\Runtime\Engine\Elements\Interfaces\FTypedElementDeletionOptions) & InDeletionOptions )